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Oval|Natural|GIA

1.28ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 2547992369

Certificate GIA 2547992369

Diamond specifications and retailer prices

From $1,361 SGD
As of November 1, 2026
Save $1,177 SGD (46%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,589 SGD at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 1.28ct natural oval diamond

This 1.28ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2547992369. Listed at 20 retailers as of November 1, 2026, with a 86% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2547992369
Dimensions9.11 × 5.75 × 3.59 mm
L/W Ratio1.58
Top View
9.11 mm5.75 mm1.28 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547992369
Side View
Table 60.0%CrownGirdle: Very ThickPavilionCulet: NDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $4,445 SGD|Low: $1,344 SGD|High: $4,736 SGD|Avg: $2,262 SGD|-6.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 13$1,361 SGD
Retailer 6$1,688 SGD
Retailer 2$1,776 SGD
Retailer 4$1,822 SGD
Retailer 18$1,822 SGD
Retailer 5$1,852 SGD
Retailer 3$1,907 SGD
Retailer 10$1,942 SGD
Retailer 14$1,948 SGD
Retailer 17$1,995 SGD
Retailer 7$2,020 SGD
Retailer 12$2,031 SGD
Retailer 8$2,103 SGD
Retailer 15$2,224 SGD
Retailer 16$2,390 SGD
Retailer 11$2,538 SGD
Retailer 9$3,300 SGD
NZ Jewellers$4,445 SGD

26 data points across 18 retailers

20 retailers$1,361 SGD to $2,538 SGD

A
Cheapest Retailer
-
$1,361 SGD
A
Retailer 2
-
$1,688 SGD
View
A
Retailer 3
-
$1,776 SGD
View
Retailer 4
-
$1,822 SGD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$1,822 SGD
View
A
Retailer 6
-
$1,852 SGD
View
Retailer 7
-
$1,907 SGD
View
Price last confirmed 8 days ago
Retailer 8
-
$1,942 SGD
View
Price last confirmed 10 days ago
Retailer 9
-
$1,948 SGD
View
Price last confirmed 4 days ago
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Retailer 10
-
$1,995 SGD
View
A
Retailer 11
-
$2,020 SGD
View
A
Retailer 12
-
$2,031 SGD
View
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Retailer 13
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$2,103 SGD
View
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Retailer 14
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$2,224 SGD
View
Retailer 15
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$2,308 SGD
View
Price last confirmed 69 days ago
A
Retailer 16
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$2,390 SGD
View
A
Retailer 17
-
$2,538 SGD
View
Retailer 18
-
$3,300 SGD
View
Price last confirmed 12 days ago
Retailer 19
-
$4,445 SGD
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
54abf051-94da-4bff-b19f-2a1e8249a491 · Oct 14
$4,589 SGD
$3,581 USD
View
Price last confirmed 23 days ago
19 more retailers have this diamond
Prices start from $1,361 SGDSave up to $1,177 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.28ct Oval
$1,361 SGD